fix(fetch-enhancers): use tree-shakable es build

[JAdshead]

Description

Updated @americanexpress/fetch-enhancers to 1.1.2 which now creates a esm build that can be more efficiently tree shaken.

Motivation and Context

reduce app.js bundle size

How Has This Been Tested?

bundling and analyzing build locally

before:

after:

Types of Changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation (adding or updating documentation)
• Dependency update
• Security update

Checklist:

• My change requires a change to the documentation and I have updated the documentation accordingly.
• These changes should be applied to a maintenance branch.
• This change requires cross browser checks.
• Performance tests should be ran against the server prior to merging.
• This change impacts caching for client browsers.
• This change impacts HTTP headers.
• This change adds additional environment variable requirements for One App users.
• I have added the Apache 2.0 license header to any new files created.

What is the Impact to Developers Using One App?

[github-actions]

📊 Bundle Size Report

file name	size on disk	gzip
app.js	137.1KB	37.5KB
runtime.js	15.6KB	5.5KB
vendors.js	148.2KB	47.6KB
app~vendors.js	431.2KB	112.6KB
service-worker-client.js	17.1KB	5.3KB
legacy/app.js	150KB	41KB
legacy/runtime.js	15.6KB	5.5KB
legacy/vendors.js	211.2KB	59.8KB
legacy/app~vendors.js	452.7KB	118.2KB
legacy/service-worker-client.js	17.6KB	5.5KB

Generated by 🚫 dangerJS against 70496a5